Metal boxes



(No Model.) 2 Sheets-Sheet 1.

0. DAUCHE & P DENIAUD. k MACHINE FOR MANUFACTURING METAL BOXES.

No. 281,980. Patent ed July 24, 1883.

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0. DAU'OHE & P. DENIAUD.

MACHINE FOR MANUFACTURING METAL BOXES. No. 281,980.

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UN STATES PATENT OFFICE.

CHARLES DAUCHE AND .PATRIGE DENIA UD, OF- LA VILLE EN BOIS, FRANCE.

MVACHINEFOR MANUFACTURING METAL BOXES.

SPECIFICATION forming part of Letters Patent No. 281,980, dated July 24, 1883.

Application filed September 21 1882. (No model.) Patented in France December 17, 1881, No. 146.381, and in England August 12,

To all whom) it may concern:

Be it known that we, CHARLES DAUOHI'J and PATRIOE DENIAUD, citizens of the Republicspecification.

This invention has for its object mechanically to produce in metal boxes of all kinds a rapid and practicable joint. For producing such a joint a lever-press is used, and forms the joint in the following manner:

In the accompanying drawings, Figures 1, 2, 3, and irepresent the joint in various phases of construction. Fig. 5 is a plan of the matrix. Fig. 6 is an elevation of the machine, partly in section. Fig. 7 is a plan of Fig. 6.

First the rim of the open metal box is pressed up by means of what is known as a spinningdisk, whose outline is not sharp, but rounded, so as to avoid cracks in the edge,

.which is thus shaped somewhat as shown at holdfast p. Over the matrix there is the stamp fixed on the beam, and consisting, first, of two semicircular rings A A, Figs. 6 and 7, which, by means of the arms R R and the ring R, are connected with the vertical bar of the die 1?; second, of the interior stamp, P.

The beam S is fitted with some mechanical device that will enable the workman to operate it by foot. When the beam descends the two semicircular rings A and A slide along the inner surface of the guide V till they arrive at the recessed part V, and there they move apart by reason of the pressure of the arms R B, and then aiford free passage to the stamp 1?. As the inside edges of the semicircular rings are beveled off at an angle of about forty-five degrees, they give an oblique incline to the upper edge of the box, while the inner stamp, 1, completes the horizontal folding, as represented in Fig. 4. The rubber ring placed into the channel B makes the joint hermetical.

NVhat we claim, and desire to protect by UnitedStates Letters Patent, is i 1. The combination of the matrix M, divided hoop A, and stamp P, substantially a and for the purposes set forth.

2. The arms R R and collar R, as anautomatically-adjustable attachment for the divided hoop A, substantially as and for the purposes set forth.

. DAUOHE.

P. DENIAUD.

WVitncsses Z. BERNERY,

A. BERNIER. 

